I will be driving my car on the highway and the problem occurs when I am accelerating, usually between 50-70 mph, or maintaining speed. The car will begin to accelerate just fine and then I will feel micro jerks through the car, as though the engine were no longer providing power to accelerate or maintain speed and then it resumes normal function. These micro jerks can happen in intervals or once or twice. At one such time, I got so sick of it that I mashed down on the accelerator, just to see what would happen. My car went into a high revved and even when I took my foot off of the gas it maintained a high idle. I pulled off to the shoulder of the road, turned my car off and restarted it. The high idle stopped, but my service engine soon light came on. Any suggestions about what might be the issue?

This could be a serious problem for your car. You should get it looked at immediately in my opinion.

Do you currently have a check engine light?

Hello,

If problem only occurs 'under power' sounds like a u-joint (driveline - rear wheel drive) or a cv-axle (front wheel drive). Check for excessive play, fluid, boot tear and breakage.

Check for moisture inside the distributor cap. Wipe it dry with a rag. Check for small hairline cracks with black lines-bad cap, spark is shorting to ground-replace it.

Speed sensor may be giving a false reading .

The biggest factor is going to be your driving habits. Slower accelerations and longer smoother stops and highway speeds closer to 55mph than 80+ will make a big difference. Of course highway driving will always be better than stop and go driving. It takes much less fuel to maintain a speed than it does to accelerate to it.
There are a lot of gimmick products out there that are exactly that, gimmicks. The biggest factor and easiest to control is the operator of the vehicle.

You have to re-set the obd via using Nissan's approved drive-cycle which is;

1. Start the engine when the engine coolant

temperature gauge needle points to C. Allow

the engine to idle until the gauge needle

points between the C and H (normal operating

temperature).

2. Accelerate the vehicle to 55 MPH (88

km/h), then quickly release the accelerator

pedal completely and keep it released for at

least 6 seconds.

3. Quickly depress the accelerator pedal for a

moment, then drive the vehicle at a speed

of 53 to 60 MPH (86 to 96 km/h) for at least

5 minutes.

4. Stop the vehicle.

5. Accelerate the vehicle to 35 MPH (55 km/h)

and maintain the speed for 20 seconds.

6. Repeat steps 4 through 5 at least 3 times.

7. Accelerate the vehicle to 55 MPH (88 km/h)

and maintain the speed for at least 3 minutes.

8. Stop the vehicle and turn the engine off.

9. Repeat steps 1 through 8 at least one more

time.

If step 1 through 7 is interrupted, repeat the

preceding step. Any safe driving mode is acceptable

between steps. Do not stop the engine

until step 7 is completed. If you cannot or

do not want to perform the driving pattern, a
NISSAN dealer can conduct it for you.

well the kickdown cable out of adjust ment would only screw up your shifting timing and when the vehicle downshifts when you press the accelerator hard. usually a shudder at cruise speeds 40 mph or higher indicates a torque converter problem or the govenor pressure solenoid and sensor. i personally would start by replaceing the sensor and solenoid and install a new filter

Normally this kind of a problem is a fuel block...there so many other ways to block...other than the filter

PLEASE don't forget to RATE ME (FIXYA) for my help..........